The PREVENTS Trial: The Preventing Recurrent Events in Veterans Navigating Transient Ischemic Attack (TIA) or Stroke Trial

2014-08-27 03:17:43 | BioPortfolio


National recommendations state that patients with a history of transient ischemic attack (TIA) or ischemic stroke should receive hypertension treatment, including antihypertensive medication and lifestyle modification, with a goal of reducing blood pressure (BP) to <120 mm Hg systolic BP and <80 mm Hg diastolic BP. Statin treatment and lifestyle modification is also recommended for post-stroke and post-TIA patients with elevated cholesterol levels or a history of stroke or TIA with an atherosclerotic cause. Despite the clear benefits of secondary stroke prevention, there is a gap between evidence and implementation in clinical practice. By a randomized controlled trial, the investigators will test whether a tailored, telephone-delivered transtheoretical model-based behavioral intervention will improve adherence to treatment in veterans with a history of TIA or stroke, thereby leading to better control of BP and cholesterol levels, as compared to an attention placebo.

The primary specific aims of this project are to:

- determine whether a behaviorally tailored intervention (TI) can effectively lower BP after 6 months of counseling as compared to an attention placebo (AP) in veterans with a history of stroke or TIA

- assess whether the TI is effective in improving adherence to diet after 6 months of counseling in veterans with a history of stroke or TIA.

Secondary aims are to

- assess whether the TI is effective in improving cholesterol levels in post-stroke veterans after 6 months

- evaluate whether the TI is effective in improving adherence to antihypertensive and lipid-lowering medications after 6 months of counseling in veterans with a history of stroke or TIA

- determine whether the TI is effective in improving adherence to exercise recommendations after 6 months.

To answer this, veterans (n=190) with a history of stroke or TIA will be randomized equally to the TI, which will use the transtheoretical framework to provide 6 monthly counseling phone sessions about adherence to diet, medication, and exercise recommendations, and the AP, in which 6 monthly counseling phone sessions about non-stroke-related health topics will be provided. Participants will make in-person visits at baseline and 6 months. BP (3 measures taken at least 5 min apart) and dietary sodium are the primary outcomes, while secondary outcomes will be total cholesterol/high density lipoprotein ratio, adherence to antihypertensive and lipid-lowering drugs, and exercise adherence.

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Prevention




tailored intervention, attention placebo


VA New York Harbor Healthcare System, NY and Brooklyn Campuses
New York
New York
United States




Narrows Institute for Biomedical Research

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:17:43-0400

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